Lecture 1Outline of current lectureI. Arthropodsa. Classificationb. CharacteristicsCurrent lectureClassification (Examples)Country-USAState-TexasCity-BryanStreet-Not on the WebHouse-1313Surname-BrundageFirst Name-AdrienneKingdom-AnamaliaPhylum-ArthropodaClass-InsectaOrder-DipteraFamily- MuscidaeGenus-Musca (fly) *always capitalizedSpecies-Domestica *always lowercase10 CharacteristicsBilateral symmetrySplit evenly in halfSegmented appendagesExoskeleton with chitin-N-acetylglucosamineMechanical protectionSclaratin-gives exoskeleton hardness and protectioni.e. crabsMuscle attachmentIncreased leverage/strength6X as strong as vertebrae tendons (humans)Prevent water lossHigher surface to volume ratioLose more heat and waterExternally segmented bodiesAllows for movementAppendages modified for feedingRaspingChewingPiercing/suckingSpongingSiphoning-Gravity does not affect bugs because high surface area and low volume-air pressure affects its insects-insects cant break surface tensionExcretionMalpighian tubules-filters and by productsTurns into ureaNitrogenous productsCirculatory systemHaemocoel-fluid filled body cavityHemolymph-bloodRespirationOpens with muscle contractionAttaches to trachea (full of liquid)Breaks into tracheolesOxygen diffuse in-CO2 diffuse outVentral nerve cord and dorsal brainVentral nerve cord-connects to brain and tells insect when to eat and stop eatingDorsal-backLateral-sideMedial-down centerVentral-frontAnterior-towards headPosterior-towards buttReproductionSexual-male and femaleParthenogenesis-females lay eggs whole male contributionCreated with fully formed embryoENTO 208 1st Edition Lecture 1Outline of current lecture I. Arthropods a. Classification b. Characteristics  Current lecture  Classification (Examples)- Country-USA- State-Texas - City-Bryan- Street-Not on the Web - House-1313- Surname-Brundage- First Name-Adrienne - Kingdom-Anamalia- Phylum-Arthropoda- Class-Insecta- Order-Diptera- Family- Muscidae- Genus-Musca (fly) *always capitalized- Species-Domestica *always lowercase 10 Characteristics - Bilateral symmetry o Split evenly in half These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.- Segmented appendages - Exoskeleton with chitin-N-acetylglucosamineo Mechanical protection  Sclaratin-gives exoskeleton hardness and protection  i.e. crabs o Muscle attachment  Increased leverage/strength  6X as strong as vertebrae tendons (humans)o Prevent water loss Higher surface to volume ratio  Lose more heat and water - Externally segmented bodies o Allows for movement - Appendages modified for feeding o Rasping o Chewing o Piercing/sucking o Sponging o Siphoning -Gravity does not affect bugs because high surface area and low volume -air pressure affects its insects-insects cant break surface tension - Excretion o Malpighian tubules-filters and by products Turns into urea Nitrogenous products- Circulatory system o Haemocoel-fluid filled body cavity o Hemolymph-blood - Respiration o Opens with muscle contraction Attaches to trachea (full of liquid)  Breaks into tracheoles Oxygen diffuse in-CO2 diffuse out - Ventral nerve cord and dorsal brain o Ventral nerve cord-connects to brain and tells insect when to eat and stop eating  Dorsal-back Lateral-side Medial-down center Ventral-front  Anterior-towards head Posterior-towards butt - Reproduction o Sexual-male and femaleo Parthenogenesis-females lay eggs whole male contribution  Created with fully formed